package com.catietie.bookmanagement.dao.mapper;


import com.catietie.bookmanagement.dao.pojo.User;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Select;

@Mapper
public interface UserMapper{

    @Select("select * from t_users where username = #{username}")
    public User selectByUsername(String username);
}